JP4499121B2 - Opening and closing device for crescent locks of misaligned sash door - Google Patents

Description

  The present invention relates to an open / close device for a crescent lock provided in a sliding sash door (referred to as an aluminum sash door constructed so as to be opened and closed in a sliding manner).

  The sliding sash door is the most widespread window forming member in ordinary houses in Japan. Opening and closing by the drag method is essentially a Japanese style opening and closing method, and is characterized by not requiring a large working space as in the case of opening and closing a Western door. For this reason, shoji doors are often arranged side by side in sliding sash doors in Japanese-style rooms. Moreover, although it is not preferable, it is not rare that large furniture is arranged facing the sliding sash door in order to manage the living space and furniture arrangement.

  As for the arrangement of a pair of sash doors in the sliding sash door, it is customary in construction that the outdoor sash door is placed on the left hand and the indoor sash door is placed on the right hand when viewed from the inside. It is. For the door closing of the sliding sash door, it is attached to the left side of the vertical sash door on the left side of the sash door, which is the indoor side in the closed state, and the hook that is fixed to the right side of the sash door in the closed state. It has become a de facto industry standard to use crescent locks that are combined with crescent fittings.

  The hook in the crescent lock is a simple metal fitting with the tip turned back in a U shape with the base facing toward the base and a screw hole in the base, and the vertical sash door of the outdoor sash door with the tip facing in the direction of shut-off operation. Used with screws. On the other hand, the crescent metal fitting includes a crescent claw having two types of latch slopes, an operation lever protruding from the crescent claw, and a base metal fitting screwed to a vertical sash door. The crescent metal fitting is attached and used so as to be capable of rotating operation via an operation lever at a position in front of the hook.

  That is, the crescent metal fitting of the crescent lock can be partially rotated along the side surface of the vertical stile by rotating the operation lever along a surface orthogonal to the glass surface of the sash door. In the operation lever of a crescent lock, generally, when the operation lever is pushed upward, the hook and the crescent claw are engaged with each other so that the crescent lock is locked, and when the operation lever is pulled down, the operation direction in which the crescent lock is released It has been adopted. In the state where the operation lever is pushed up and in the state where the operation lever is lowered, the crescent metal fitting is completely within the range of the side surface of the vertical hook. It should be noted that the two types of latch slopes of the crescent claw in the locked state function to urge the pair of sash doors in the close direction and the close contact direction by engaging with the hook, thereby ensuring airtightness.

  Conventionally, several problems have been pointed out regarding the above-mentioned crescent lock. One of them is caused when shoji doors are installed inside the sliding sash door. For example, when trying to take in the outside air through the sash door on the right side, it is necessary to first open the shoji door and unlock the sash door crescent lock. At this time, if the right-hand shoji door for taking in outside air is easily opened, the crescent lock cannot be unlocked.

  In other words, the crescent bracket of the crescent lock is located on the left side of the left vertical sash door of the right sash door, and this position is the vertical sash of the left side door even when the right door is fully opened. It is because it cannot be put in the back. As a result, in order to achieve the purpose, after closing the open right shoji door, open the left shoji door completely, unlock the crescent lock, and then open the right shoji pair This requires an extremely complicated and wasteful operation of moving the door to the left and then operating the right sash door. Moreover, such a complexity is the same when locking the crescent lock. Furthermore, when large furniture is arranged in front of the left shoji door, if the width of the furniture exceeds the door width, it is impossible to open and close the sash door unless the furniture is moved. Sometimes. This is not only inconvenient, but there is a serious concern that emergency evacuation is difficult when an accident such as a fire occurs.

Although the following patent documents 1 and 2 have been proposed for the above-mentioned problem concerning the sash door crescent lock in the Japanese-style room, there is no effective solution.
Japanese Utility Model Publication No. 62-149567 Japanese Utility Model Publication No. 1-170763

  In the proposal shown in the above-mentioned Patent Document 1, the crescent bracket is provided with a pair of operation levers that are interlocked by an interlocking shaft that penetrates the vertical stile on both the left side surface and the right side surface of the sash door. Although it is intended to be operable, it seems that the presence of glass that becomes an obstacle when attempting to operate from the right side surface is ignored. The proposal shown in the above-mentioned patent document 2 is provided by bending the intermediate position of the operation lever for operating the crescent lock to the side and penetrating the vertical sash door of the partial sash door bent to the side. Although it is possible to operate from both the left and right sides of the vertical stile, it is necessary to form an arc-shaped slit for operating the operating lever in the vertical stile, so that the strength of the vertical stile cannot be secured. There is. Neither proposal can be applied to existing crescent locks. In other words, it cannot be retrofitted.

  There is no effective solution to the above-mentioned problem regarding the sash door crescent lock. For example, the crescent lock is required for an indoor locking device for a sash door. This is because various demands such as a low cost, an anti-crime function as a locking device and an airtight function required are balanced at a high level.

  The present invention eliminates the advantages of the crescent lock, and can be combined with an existing crescent lock if necessary, such as when a shoji door is juxtaposed to the sash door or furniture is arranged. It is an object of the present invention to provide an open / close device for a crescent lock of a sliding sash door that allows an operation lever of an existing crescent lock to be operated from the right side of the vertical sash by being retrofitted to the vertical stile.

  The present invention employs the following means in order to solve the above problems.

  The open / close device for the crescent lock of the sliding sash door according to claim 1 of the present invention is a sash door that unlocks and locks the crescent lock on one of the left and right sides of the vertical sash door of the sliding sash door. In the crescent lock opening and closing device, a case that is fixed to the vertical sash door of the sliding sash door, a connecting link arm that is provided with a lever holding portion that holds the operation lever of the crescent lock at the tip, and an intermediate portion that is fixed to the case. And an operating arm connected to a base end portion of the connecting link arm, the operating arm being operated from the other side of the left and right of the vertical sash door, thereby connecting the connecting link arm. The crescent lock is operated to unlock and lock the operation lever of the crescent lock. The crescent lock is arranged on the left side which is one side of the vertical sash door on the indoor side of the sliding sash door, and the operation arm protrudes to the right side of the other side of the vertical sash door on the indoor side. The connecting link arm is positioned so as to be in an almost upright position in front of the operation lever of the crescent lock, and is fixed to the front of the vertical sash door of the indoor sash door. By operating up and down along the front of the vertical sash door from the right side of the vertical sash door on the indoor side, the crescent lock operating lever is moved to the left side of the vertical sash door on the indoor side via the connecting link arm. And is driven so as to perform the unlocking operation and the locking operation.

  In the crescent lock opening and closing device having the above-described configuration, the operation arm projects in a substantially horizontal posture to the right side of the vertical sash door located on the right hand side in the closed state, that is, in the closed state. Therefore, for example, even when a shoji door or furniture is arranged in front of the outdoor sash door located in the left hand, it is possible to operate the operation arm to move up and down. This operation arm has a swing fulcrum in the middle part, and when one end is operated up and down, the other end of the operation arm moves up and down in the direction opposite to the operation direction. Therefore, the connecting link arm connected to the other end of the operating arm in an almost upright posture is driven to move up and down while maintaining the posture. The connecting link arm grips the operation lever of the crescent lock through a lever gripping portion provided at the tip. Therefore, the connecting link arm driven in the vertical direction can drive the operation lever of the crescent lock downward or push up to realize a predetermined locking operation or unlocking operation. When there is no obstacle in front of the crescent lock, the crescent lock can be operated without any trouble by directly operating the operation lever of the crescent metal fitting without removing the opening / closing device of the crescent lock of the present invention. .

  According to a third aspect of the present invention, the open / close device for the crescent lock of the sliding sash door is formed by combining a link link arm and an operation arm with a long hole formed in the operation arm and a link shaft fixed to the link link arm. The connecting link arm is connected so as to absorb the horizontal moving component.

  The crescent lock opening and closing device having the above-described configuration can facilitate the vertical movement of the connecting link arm. The direction of movement of the connecting link arm required to pull down or push up the operation lever of the crescent lock is vertical movement, but the movement of the end of the operating arm that drives the connecting link arm is centered on its swinging fulcrum. Arc motion. Therefore, some unnecessary horizontal motion components are also transmitted to the connecting link arm, and the vertical movement of the connecting link arm is not smooth. Therefore, when connecting the both, a long hole is provided in the operation arm, the link shaft is fixed to the connection link arm, and the link shaft slides within the range of the long hole, thereby combining the end of the operation arm. Only the horizontal movement component can be prevented from being transmitted to the link arm.

  According to a fourth aspect of the present invention, in the open / close device for the crescent lock of the sliding sash door, the lever gripping portion in the connecting link arm is formed by a rubber band, and the posture change caused by the operation of the operation lever of the crescent lock is detected. It absorbs by deformation of.

  The crescent lock opening and closing device having the above configuration can reduce the operating force of the operating arm when unlocking or locking the crescent lock. The crescent metal fitting of the crescent lock is configured to perform an unlocking operation and a locking operation by a rotational motion around the shaft. Therefore, the operation lever performs an arc motion, and the angle of the operation lever varies greatly depending on the operation position. Therefore, the operating force on the operating arm can be reduced by forming the lever gripping portion of the connecting link arm with a rubber band and absorbing the posture change of the operating lever by the deformation of the rubber band.

  The open / close device for the crescent lock of the sliding sash door according to claim 5 of the present invention is characterized in that the lever gripping portion in the connecting link arm is provided so as to be able to swing with respect to the connecting link arm. .

  The open / close device for the crescent lock of the sliding sash door having the above configuration can absorb the change in the attitude of the operation lever when the operation lever is driven from the operation arm via the connecting link arm by the swinging operation of the lever gripping portion. As a result, the operating force on the operating arm can be reduced.

  The open / close device for the crescent lock of the sliding sash door according to the present invention projects the operating lever of the existing crescent lock disposed on the left side of the vertical sash door of the right hand toward the right side of the connecting link arm and the vertical sash. The operating lever of the existing crescent lock can be driven from the right side of the vertical stile, so the shoji door is drawn to the front of the left hand sash door, or large furniture, etc. Even when it is placed, the sash door can be opened and closed without the need to move the shoji door to the left and right multiple times, or the need to move furniture, etc. When there is no obstacle such as the above, it is very convenient because the operation lever of the existing crescent lock can be directly operated.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an open / close device for a crescent lock of a sliding sash door according to the present invention (hereinafter simply referred to as “open / close device”) will be described below with reference to the drawings.

  The sliding sash door is composed of a pair of a right sash door 5R located on the right hand and a left sash door 5L located on the left hand in the closed state, and the crescent lock 30 is generally on the left side of the vertical sash 51 of the right sash door 5R. It is arranged on the surface 52 (FIG. 1). Such an arrangement relationship of the sliding sash door and the crescent lock 30 follows a stable construction practice, and there is no exception.

  The crescent lock 30 includes a hook 56 that is fixed to the vertical sash 51 of the left sash door 5L and a crescent bracket that is fixed to the left side surface 52 of the vertical sash 51 of the right sash door 5R. It consists of a base metal fitting 31 screwed to a 5R vertical stile 51 and a crescent claw 32 attached to the base metal fitting 31 so as to be capable of rotating. The crescent claw 32 is integrally formed with a latch slope 33 that engages with the hook 36 at the time of locking and an operation lever 35 for unlocking and locking operation. The crescent lock 30 is locked by an operation of pushing up the operation lever 35, and can be unlocked by an operation of pulling down the operation lever 35.

  The opening / closing device 20 of the present invention includes a case 21 formed by processing a stainless steel sheet metal, a case fixing bracket 22, an operation arm 23, and a connecting link arm 24 having a lever gripping portion 26 attached to the tip. (FIGS. 1 and 2). Stainless steel is used in consideration of maintaining aesthetics by preventing rust because the vicinity of the window is susceptible to special condensation even in the indoor environment. In addition, when not using stainless steel, it is preferable to use the aluminum alloy which can unify a texture with a sash door.

  The case 21 is formed in a shallow square dish shape. A square hole H1 is formed on the upper surface of the case 21, and a pair of upper and lower long holes A2 and A2 are provided on the front surface of the case 21. The operation arm 23 and the connecting link arm 24 are formed in a band plate shape. A swing fulcrum J1 is provided at a substantially central position on the front surface of the case 21, and the operation arm 23 is swingably attached to the swing fulcrum J1 with one end protruding outside the case 21. The other end of the operation arm 23 is provided with a long hole A3, and the operation arm 23 reaches below the square hole H1 of the case. The swing fulcrum J1 is located at an approximately middle position of the operation arm 23, and the operation arm 23 can move the other end up and down by operating one end projecting outward from the case 21 up and down. it can.

  The base end portion of the connection link arm 24 is swingably connected to the distal end portion of the operation arm 23 through the square hole H1 of the case 21. Both are combined in a state where the link shaft J2 attached to the base end portion of the connection link arm 24 is passed through the long hole A3 of the operation arm 23, and the base end portion of the connection link arm 24 is within the range of the long hole A3. Permitted to move freely in the horizontal direction.

  The connecting link arm 24 is positioned by connecting the base end portion thereof to the operation arm 23, and the intermediate portion thereof is constrained to move up and down by the square hole H1 of the case 21, thereby maintaining an upright posture. be able to. The upper half of the connecting link arm 24 is bent into an appropriate arc shape, and a lever gripping portion 25 is attached to the distal end of the connecting link arm 24 via a hinge shaft J3 so as to be able to swing. Yes. The lever grip 25 is formed in a square frame shape through which the operation lever 35 of the crescent lock 30 can be inserted, and a rubber sheet 26 for preventing slippage is lined on the inner surface.

  The case fixing bracket 22 is a so-called adapter for attaching the case to the sash door. The case fixing bracket 22 is formed in a shallow C-channel cross-sectional shape, and a pair of upper and lower vertical holes A1 and A1 are formed on the back surface. In addition, screw holes corresponding to the horizontal long holes A2 and A2 provided in the front surface of the case 21 are arranged on the front surface of the case fixing bracket 22 which is divided into upper and lower portions. The case fixing bracket 22 can be accompanied by a double-sided adhesive tape 27 on the back surface (indicated by a two-dot chain line in FIG. 2).

  The opening / closing device 20 can be connected to the existing crescent lock 30 in the following manner (FIGS. 1 to 3). First, the operation lever 35 of the crescent lock 30 in the locked state is passed through the lever gripping portion 25 of the connecting link arm 24, and in this state, the approximate vertical position of the case is such that the operation arm 23 swings to the lowest position. And marking is made on the vertical sash 51 of the right sash door 5R. Then, the case fixing bracket 22 is attached to the marked position. The case fixing bracket 22 can be attached by either screwing or double-sided adhesive tape, but here, a case where screwing is employed will be described.

  The case fixing bracket 22 is positioned at the marking position of the vertical stile 51, a lower hole is formed at the central position of the upper and lower elongated holes A1 and A1, and the case fixing bracket 22 is temporarily fixed using a tapping screw. Next, the case 21 is temporarily fixed by inserting a female screw from the front side of the case 21 through the horizontal long holes A2 and A2 to the temporarily fixed case fixing bracket 22. If the vertical position of the case 21 is appropriate, the case 21 is removed and the tapping screw is tightened to completely fix the case fixing bracket 22.

  The case 21 is temporarily fixed again to the case fixing metal fitting 22 that has been completely fixed, and the horizontal position of the case 21 is determined. In the horizontal positioning, the case fixing bracket 22 is moved to the left and right of the case via the horizontal long holes A2 and A2 so that the connecting link arm 24 is in a completely upright posture, and the machine screw is inserted at that position. It ends easily by closing.

  The crescent lock 30 combined with the opening / closing device 20 can be locked or unlocked by directly operating the operation lever 35 from the front of the left sash door 5L, as well as the normal crescent lock 30, and the right sash door 5R. It is also possible to perform locking or unlocking operation from the right side of the vertical stile 51 through the opening / closing device 20 (FIGS. 2 and 3). In the locked state of the crescent lock 30, the operating arm 23 of the opening / closing device 20 is set to the lowest position (FIG. 1, FIG. 3A). When the operation arm 23 is operated to be pulled up, the connecting link arm 24 is driven downward in the upright position, and is driven in a direction to pull down the operation lever of the crescent lock 20 held via the lever holding portion 25. Therefore, the crescent lock 30 can be unlocked (FIG. 3B).

  In the crescent lock 30, the latch slope 33 is usually detached from the hook 36 at a position where the crescent claw 32 is rotated about 90 degrees, and the sliding sash door can be opened and closed. At this time, the angular posture of the operation lever 35 of the crescent lock 30 changes by about 90 degrees. However, the lever gripping portion 25 can follow the change in the posture of the operation lever 35 by shaking the head. .

  In the case where shoji doors are juxtaposed to the sliding sash doors, the opening / closing device 20 shown in the above embodiment is extremely convenient (FIG. 4). For example, when the right sash door 5R is to be opened and closed, it is a natural operation to pull the right shoji door 6R to the left as a premise. However, when this natural operation is performed, the existing crescent lock 30 is used. Is located behind the vertical stiles 61, 61 of the left and right shoji doors and cannot be unlocked. However, when the open / close device 20 is combined with the crescent lock 30, the crescent lock 30 can be unlocked by operating the operating lever 23 protruding to the right side of the vertical sash 51 of the right sash door 5R. is there. This is the same when furniture is arranged in front of the left sash door 5L.

  The lever grip portion 25 attached to the connecting link arm 24 can have a simple configuration using a rubber band (FIG. 5). The distal end portion of the connecting link arm 24 is bent backward so as to follow the posture of the operation lever 35 of the crescent lock 30 in the locked state, and a lever gripping portion 25 by an annular belt-shaped rubber band is attached to this portion together with a washer. Screwed or riveted. The connecting link arm 24 is set through the operation lever 35 in the lever grip 25 (FIG. 5A). The change in the posture of the operation lever 35 when the connecting link arm 24 is pulled down to unlock the crescent lock 30 is absorbed by the elastic deformation of the lever grip 25 (FIG. 5B). In such an operation, the physical properties of rubber having a large friction coefficient contribute greatly. Therefore, even in the locking operation, the operation lever 35 of the crescent lock 30 can be pushed back via the connecting link arm 24 without slipping.

It is a perspective view which shows the attachment state of the opening / closing apparatus of the crescent lock of the sliding sash door of this invention. It is a disassembled perspective view of the opening / closing apparatus of the crescent lock of the sliding sash door of this invention. It is a side view which shows the attachment state of the opening / closing apparatus of the crescent lock of the sliding sash door of this invention. It is a top view which shows the attachment state of the opening / closing apparatus of the crescent lock of the sliding sash door of this invention. It is a perspective view which shows other embodiment of the principal part of the opening / closing apparatus of the crescent lock opening / closing sash door of this invention.

Explanation of symbols

5R right sash door,
5L left sash door,
51 Vertical stile,
J1 rocking fulcrum,
A3 long hole,
20 Opening and closing device of the crescent lock of the sliding sash door,
21 cases,
23 Operation arm,
24 connecting link arms,
25 Lever gripping part,
30 Crescent tablets,
35 Control lever

Claims (5)

In the opening and closing device of the crescent lock of the sash door that unlocks and locks the crescent lock on one side of the left and right sides of the vertical sash door of the sliding sash door,
A case that is fixed to the vertical sash door of the sliding sash door, a connecting link arm that is provided with a lever gripping portion that grips the operation lever of the crescent lock at the tip portion, and a swing fulcrum that is fixed to the case at the intermediate portion; An operation arm connected to the base end of the connection link arm,
The operation arm is driven to perform the unlocking operation and the locking operation of the operation lever of the crescent lock through the connection link arm by operating from the other side of the left and right of the vertical sash door. The open / close device for the Crescent lock of the sliding sash door. The crescent lock is arranged on the left side, which is one side of the vertical sash on the indoor side of the sliding sash door,
In the case, the operation arm protrudes to the right side of the other side of the vertical sash door of the indoor sash door and is in a substantially horizontal posture, and the connecting link arm is in a substantially upright posture in front of the operation lever of the crescent lock. Is fixed to the front of the vertical sash door of the indoor sash door,
The operating arm is operated in the vertical direction along the front surface of the vertical sash door from the right side of the vertical sash door on the indoor side, thereby moving the operation lever of the crescent lock via the connecting link arm. 2. The open / close device for a crescent lock of a sliding sash door according to claim 1, wherein the opening and closing operation is performed along the left side surface of the vertical stile.   The connection link arm and the operation arm are connected so as to absorb a horizontal movement component of the connection link arm by a combination of a long hole formed in the operation arm and a link shaft fixed to the connection link arm. The open / close device for the crescent lock of the sliding sash door according to claim 1 or 2.   The lever holding part in the connection link arm is formed by a rubber band, and absorbs a change in posture accompanying the operation of the operation lever of the crescent lock by deformation of the rubber band. Opening and closing device for the crescent lock of the sliding sash door. The open / close device for the crescent lock of the sliding sash door according to claim 1, wherein the lever gripping portion is provided so as to be swingable with respect to the connecting link arm.

Images